stanley



(No Model.)

A. I. STANLEY. BELL.

.No. 449,832. Patented Apr. 7, 1 91.

WITNESSES fl fizy R UNITED STATES PATENT OFFICE.

ARTHUR F. STANLEY, OF NE\V YORK, N. Y.

BELL.

SPECIFICATION forming part of Letters Patent No. 449,832, dated April '7', 1891.

Application filed May 29, 1890. Serial No, 353,598. (No model.)

To aZZ 1071,0711, it may concern:

Be it known that I, ARTHUR F. STANLEY, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Electric Bells; and I do hereby declare the following to be a full, clear, and-exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In Letters Patent No. 423,707, granted to me on March 18,1890, I have described an invention having for its object the construction of electric bells in which the armature, hammer-stem, and hammer were all in one piece. In the said patent I have shown thearmature, hammer-stem, and hammer struck up out of one flat piece of iron or steel, and haveshown as the preferred form a twisted stem for the purpose of presenting the edge of the hammer-disk to the gong. lVhile such construction is satisfactory, I have found it desirable to somewhat soften the nature of the blow given, because the iron hammer-disk has a of the complete electric bell with a portion of the front cut away. Fig. 2 is a front, and Fig. 3 a side, View of the combined armature, hammer-stem, and hammer-disk.

The electro-magnets A are located, as usual, in the box B, and in a suitable bearingl pivot the armature O, which is, as already stated, constructed in one piece with the stem (Z and hammer or disk 6. Upon the latter I mount the peen f, which preferably consists of a convex piece of brass having the attaching-stem g, which is inserted or screwthreaded into a corresponding hole in the disk 6, and for the purpose of obtaining solidity throughout I prefer to unite the parts e, f, and g by means of solder. Thus constructed the stem d need not be twisted, the blow struck upon the gong is given by a metal more suitable than iron or steel with respect to the sound produced, and the gong does not become defaced by repeated use.

I claim as my invention As an article of manufacture, the hereindescribed electromagnetic hammer for electric bells, consisting of the armature C, the stem at, and the perforated hammer-disk e, stamped in one flat integral piece of iron or steel, in combination with the peen f, of other metal, attached thereto by the stem g.

In testimony whereof I affix my signature in presence of two witnesses.

ARTHUR F. STANLEY. Witnesses:

T. J. MOTIGHE, J O. SPAETH. 

